Simple babel livereload

gulpfile.js

var gulp = require('gulp'),
    babel = require('gulp-babel'),
    livereload = require('gulp-livereload'),
    http = require('http'),
    st = require('st'),
    transform = require('vinyl-transform'),
    browserify = require('browserify');

gulp.task('js', ["es6"],function() {

    var browserified = transform(function(filename) {
        var b = browserify({entries: filename, debug: true, basedir:"./build"});
        return b.bundle();
      });

    return gulp.src("build/main.js")
        .pipe(browserified)
        .pipe(gulp.dest("./"))
        .pipe(livereload());
    
});

gulp.task("es6",function() {
    return gulp.src("src/**/*.js")
        .pipe(babel())
        .pipe(gulp.dest("build"));
    
});


gulp.task("default",["js"],function(done) {
	http.createServer(
	    st({ index: 'index.html', cache: false, path: __dirname })
	).listen(8080, done);
	livereload.listen();
	gulp.watch('src/*', ['js']);
});

Thanks! Found this helpful.